William h



(No Model.)

W. .H. H. GHILDS.

v SHEATHING PAPER.

No. 372,894. Patented Nov. 8, 1887.

' INYENTOR:

BY Mg A. v ATTORNEYS.

UNITED STATES PATENT OFFICE.

WILLIAM H. H. camps, or BROOKLYN, NEW YORK.

SHEATHING-PAPER.

SPECIFICATION forming part of Letters Patent No. 372.89%, dated November8, 1887.

Application filed August 6, 1887. Serial No. 246,282.

or some other water-proof or cementing or disinfecting material. In suchpaper it has been found that the interposed composition has atendency-to run out from between the sheets of paper, especially underthe influence of heat, if the latter is placed in a vertical position,as when a roll of such paper stands on end. If a binding or hem is usedto prevent this trouble, the edge of the paper is thickened. By myinvention the paper is kept of uniform thickness, less paper isrequired. thereby effecting a saving, and the material used forwaterproofing or cementing or disin feeling is efl'ectually preventedfrom exuding under any conditions.

The following is the description .of myinvention,in which reference ismade to the accom panying drawings, similar letters of referenceindicating corresponding parts in all the figures.

Referring to the drawings, A A represent the sheets of paper out ofwhich the compound sheet B is constructed. Over the center or otherdesired portion or zone of each sheet,or of one of them, the asphalt orother desired composition is applied. This may extend to within a shortdistance of one or each edge. To the uncovered narrow strip,along theedge or edges, paste or suitable cement is applied. If, now, the twosheets are rolled together, the entire surfaces adhere. The desiredportions are cemented by the asphalt or other cement, a, the rest by thepaste or cement, b.

Figure 1 of the drawings represents my invention as appliedto-protectiug or pasting both margins of the sheets of paper.

Fig. 2 of the drawings shows my invention as applied to treating oneedge only of the sheets of paper, as in such cases where it is desirablethat the principal coating should ex:

(No model.)

tend clear to one of the edges. In this case the cement, a, is carriedfrom one edge nearly to the other, and the remaining portion of thepaper is pasted together with the paste, 1). It also shows how more thantwo layers may be used, 0 representing an extra piece.

Fig. 3 of the drawings shows my.invention as applied to sheets of paperwhose four edges receive the one paste, 1), and whose center receivesthe cement, a.

Fig. 4. of the drawings showssheets of paper to which the paste,b,isapplied in three zones, with the cement, a,interposed. This sheet may beused as it is, or may be split into narrow pieces through the dottedline a: 00. Intermediate lines or areas of pasting, b b, affordadditional security in the retaining of the cement,'a a,in place whenthe paper is not split or slitted. The two cementing materials are sochosen that each will perform its specific functions the mosteli'ectually possible. Thus, if the center is to be water-proof, theusual asphaltic composition may be applied thereto, while flour pastewill secure the ends so as to prevent the asphalt from running out; or adisinfectant cement may be used for the center, and the edges may besecured by'glue. More than two thicknesses of paper may be employed.

I do not restrict myself to any particular paste, cement, orcomposition, or assortment of pastes or cementing material, and themethod of applying the same is no part of this invention. The respectiveareas of application of each cement or composition may be varied also.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. As an article of manufacture, the compoundpaper consisting of two or more layers cemented together with two ormore cementing materials, each applied within definite areas.

2. As an article of manufacture, the compound paper cousisting of two ormore layers cemented together in the center by one composition and onthe edges by another, substantially as shown and described.

WILLIAM H. H. OHILDS.

Witnesses:

' JOHN G. TAIT,

RALPH R. MABIE.

